bool Game_Map::PrepareEncounter() {
if (GetEncounterRate() <= 0) {
return false;
}
int x = Main_Data::game_player->GetX();
int y = Main_Data::game_player->GetY();
std::vector<int> encounters;
GetEncountersAt(x, y, encounters);
if (encounters.empty()) {
// No enemies on this map :(
return false;
}
Game_Temp::battle_terrain_id = Game_Map::GetTerrainTag(Main_Data::game_player->GetX(), Main_Data::game_player->GetY());
Game_Temp::battle_troop_id = encounters[rand() / (RAND_MAX / encounters.size() + 1)];
Game_Temp::battle_escape_mode = -1;
int current_index = GetMapIndex(location.map_id);
while (Data::treemap.maps[current_index].background_type == 0 && GetMapIndex(Data::treemap.maps[current_index].parent_map) != current_index) {
current_index = GetMapIndex(Data::treemap.maps[current_index].parent_map);
}
if (Data::treemap.maps[current_index].background_type == 2) {
Game_Temp::battle_background = Data::treemap.maps[current_index].background_name;
} else {
Game_Temp::battle_background = Data::terrains[Game_Temp::battle_terrain_id - 1].background_name;
}
Game_Temp::battle_calling = true;
return true;
}
bool Game_Map::PrepareEncounter() {
if (GetEncounterRate() <= 0) {
return false;
}
int x = Main_Data::game_player->GetX();
int y = Main_Data::game_player->GetY();
std::vector<int> encounters = GetEncountersAt(x, y);
if (encounters.empty()) {
// No enemies on this map :(
return false;
}
Game_Temp::battle_troop_id = encounters[Utils::GetRandomNumber(0, encounters.size() - 1)];
Game_Temp::battle_calling = true;
if (Utils::GetRandomNumber(1, 32) == 1) {
Game_Temp::battle_first_strike = true;
}
SetupBattle();
return true;
}
void Game_Map::ResetEncounterSteps() {
int rate = GetEncounterRate();
if (rate > 0) {
int throw_one = rand() / (RAND_MAX / rate + 1);
int throw_two = rand() / (RAND_MAX / rate + 1);
// *100 to handle terrain rate better
location.encounter_steps = (throw_one + throw_two + 1) * 100;
}
}
bool Game_Map::PrepareEncounter() {
if (GetEncounterRate() <= 0) {
return false;
}
int x = Main_Data::game_player->GetX();
int y = Main_Data::game_player->GetY();
std::vector<int> encounters;
GetEncountersAt(x, y, encounters);
if (encounters.empty()) {
// No enemies on this map :(
return false;
}
Game_Temp::battle_terrain_id = Game_Map::GetTerrainTag(Main_Data::game_player->GetX(), Main_Data::game_player->GetY());
Game_Temp::battle_background = "";
Game_Temp::battle_troop_id = encounters[rand() / (RAND_MAX / encounters.size() + 1)];
Game_Temp::battle_escape_mode = -1;
Game_Temp::battle_calling = true;
return true;
}
void Game_Map::UpdateEncounterSteps() {
if (Player::debug_flag &&
Input::IsPressed(Input::DEBUG_THROUGH)) {
return;
}
if(Main_Data::game_player->InAirship()) {
return;
}
if (GetEncounterRate() <= 0) {
location.encounter_steps = 0;
return;
}
int x = Main_Data::game_player->GetX();
int y = Main_Data::game_player->GetY();
const RPG::Terrain* terrain = ReaderUtil::GetElement(Data::terrains, GetTerrainTag(x,y));
if (!terrain) {
Output::Warning("UpdateEncounterSteps: Invalid terrain at (%d, %d)", x, y);
return;
}
location.encounter_steps += terrain->encounter_rate;
struct Row {
int ratio;
float pmod;
};
#if 1
static constexpr Row enc_table[] = {
{ 0, 0.0625},
{ 20, 0.125 },
{ 40, 0.25 },
{ 60, 0.5 },
{ 100, 2.0 },
{ 140, 4.0 },
{ 160, 8.0 },
{ 180, 16.0 },
{ INT_MAX, 16.0 }
};
#else
//Old versions of RM2k used this table.
//Left here for posterity.
static constexpr Row enc_table[] = {
{ 0, 0.5 },
{ 20, 2.0 / 3.0 },
{ 50, 5.0 / 6.0 },
{ 100, 6.0 / 5.0 },
{ 200, 3.0 / 2.0 },
{ INT_MAX, 3.0 / 2.0 }
};
#endif
const auto encounter_rate = GetEncounterRate();
const auto ratio = location.encounter_steps / encounter_rate;
auto& idx = last_encounter_idx;
while (ratio > enc_table[idx+1].ratio) {
++idx;
}
const auto& row = enc_table[idx];
const auto pmod = row.pmod;
const auto p = (1.0f / float(encounter_rate)) * pmod * (float(terrain->encounter_rate) / 100.0f);
if (Utils::PercentChance(p)) {
SetEncounterSteps(0);
PrepareEncounter();
}
}
